Lin Wanwan, a female doctor of chemistry, traveled through time wearing cartoon pajamas and squatting on the toilet. She fell headlong into the bath of the God of War, and after being pulled out, she began to use science to do things in ancient times: gunpowder exploded military camps, soap glass made a lot of money, penicillin saved the people, and steam engines started the industrial revolution. The prince changed from "Get out" to "I want to have a child with you." The heroine becomes the first female official in the imperial court. She attacks the enemy camp at night and bombs the coalition forces. When she found her way home, she tore off the formula and chose to stay.
